Changeset 71198 in vbox for trunk/src/VBox/HostDrivers/Support/linux

Timestamp:

Mar 5, 2018 10:59:17 AM (7 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

121103

Message:

SUPDrv,VMMR0: Prepped for extending the fast I/O control interface a bit for NEM; SUPDRV version increment. bugref:9044

File:

• trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c (modified) (1 diff)

trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c

@@ -582 +582 @@
      * the session and iCmd, and only returns a VBox status code.
      */
+    AssertCompile(_IOC_NRSHIFT == 0 && _IOC_NRBITS == 8);
 #ifdef HAVE_UNLOCKED_IOCTL
-    if (RT_LIKELY(   (   uCmd == SUP_IOCTL_FAST_DO_RAW_RUN
-                      || uCmd == SUP_IOCTL_FAST_DO_HM_RUN
-                      || uCmd == SUP_IOCTL_FAST_DO_NOP)
+    if (RT_LIKELY(   (unsigned int)(uCmd - SUP_IOCTL_FAST_DO_FIRST) < (unsigned int)32)
                   && pSession->fUnrestricted == true))
-        rc = supdrvIOCtlFast(uCmd, ulArg, &g_DevExt, pSession);
+        rc = supdrvIOCtlFast(uCmd - SUP_IOCTL_FAST_DO_FIRST, ulArg, &g_DevExt, pSession);
     else
         rc = VBoxDrvLinuxIOCtlSlow(pFilp, uCmd, ulArg, pSession);
 #else   /* !HAVE_UNLOCKED_IOCTL */
     unlock_kernel();
-    if (RT_LIKELY(   (   uCmd == SUP_IOCTL_FAST_DO_RAW_RUN
-                      || uCmd == SUP_IOCTL_FAST_DO_HM_RUN
-                      || uCmd == SUP_IOCTL_FAST_DO_NOP)
+    if (RT_LIKELY(   (unsigned int)(uCmd - SUP_IOCTL_FAST_DO_FIRST) < (unsigned int)32)
                   && pSession->fUnrestricted == true))
-        rc = supdrvIOCtlFast(uCmd, ulArg, &g_DevExt, pSession);
+        rc = supdrvIOCtlFast(uCmd - SUP_IOCTL_FAST_DO_FIRST, ulArg, &g_DevExt, pSession);
     else
         rc = VBoxDrvLinuxIOCtlSlow(pFilp, uCmd, ulArg, pSession);